US6695097B1 - Construction hoist system - Google Patents

Construction hoist system Download PDF

Info

Publication number
US6695097B1
US6695097B1 US09/623,675 US62367500A US6695097B1 US 6695097 B1 US6695097 B1 US 6695097B1 US 62367500 A US62367500 A US 62367500A US 6695097 B1 US6695097 B1 US 6695097B1
Authority
US
United States
Prior art keywords
trolley
connection members
pair
platform
work
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/623,675
Other languages
English (en)
Inventor
Sven-Erik Wiklund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alimak AB
Original Assignee
Alimak AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alimak AB filed Critical Alimak AB
Assigned to ALIMAK AB reassignment ALIMAK AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WIKLUND, SVEN-ERIK
Application granted granted Critical
Publication of US6695097B1 publication Critical patent/US6695097B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure

Definitions

  • the present invention relates to a construction hoist system, comprising at least one mast having two adjacent parallel corner rails, a trolley running on the corner rails, and a motor on the trolley for driving the trolley along the corner rails.
  • the system further comprises a first pair of connection members on the trolley, a work platform having a substantially flat work floor, and a second pair of connection members on the work platform.
  • the work platform is releasably connectable to the trolley through interconnection of the first and second pairs of connection members with the work platform in a horizontal position in which the work floor is situated at a first level relative the trolley.
  • Such a construction hoist system is disclosed in SE-B-462 336.
  • the work platform of this known system is hinged on the trolley through the first and second pairs of connection members, and at the opposite end the work platform is hinged to another trolley on another adjacent mast through further pairs of connection members similar to said first and second pairs of connection members.
  • a levelling device controls the trolley motors on the respective masts in response to sensors sensing the deviation of the work platform from a desired normal horizontal position of the work platform, so that the work platform substantially maintains its horizontal position during hoisting and lowering.
  • the known system is limited to a two-mast configuration.
  • the prime object of the present invention is to provide a new construction hoist system, which is more versatile than the above known system and which is not limited to a two-mast configuration but can include a single-mast configuration as well.
  • Another object of the invention is to provide a versatile construction hoist system comprising simple and easy-to-use components to facilitate tailor-made configurations of the system for any buildings.
  • the construction hoist system described initially which is characterised by a transport platform having a substantially flat load carrier floor, and a third pair of connection members provided on the transport platform, the transport platform being releasably connectable to the trolley through interconnection of the first and third pairs of connection members with the transport platform in a horizontal position in which the load carrier floor is situated at a second level relative the trolley, said second level being below said first level.
  • the advantage is obtained that besides the option of connecting the work platform, typically of a conventional type with a raised work floor, to the trolley there is also the alternative option of connecting the transport platform, typically with a low load carrier floor, to the trolley.
  • Said second level relative the trolley is suitably selected so that the load carrier floor of the transport platform is close to or rests on the ground when the trolley is in its lowermost position on the mast, in order to facilitate material handling, i.e. loading and unloading the transport platform.
  • the construction hoist system of the invention preferably comprises an adapter having said third pair of connection members and being releasably connected to the transport platform.
  • the adapter enables use of conventional types of transport platforms, which is cost beneficial.
  • the adapter comprises a lateral beam, and two spaced apart posts extending upwardly from the lateral beam, said third pair of connection members being formed on the posts at their upper free ends.
  • the construction hoist system of the invention suitably comprises a horizontal support beam, which is releasably attachable to the lateral beam of the adaptor to form a rigid unit consisting of the support beam and the adaptor.
  • the support beam is releasably attachable to the trolley in such a manner that the load carrier floor of the transport platform is fixed in a horizontal position when the transport platform is attached to the trolley through the support beam.
  • the construction hoist system of the invention comprises an additonal mast with an additional trolley, and an additional adapter, which is releasably connected to the transport platform at an end therof which is opposite the end of the platform which is provided with said first-mentioned adapter.
  • said third pair of connection members of the first-mentioned adapter are hingeable on said first pair of connection members of the trolley and the pair of connection members on the additional adapter are hingeable on an additional pair of connection members on the additional trolley, such that the transport platform is tiltable about a horizontal axis through said third and first pairs of connection members and about a horizontal axis through the pairs of connection members on the additional trolley and the additional adapter.
  • FIG. 1 is a perspective view of a trolley of the construction hoist system of the invention
  • FIG. 2 is a perspective view of a work platform section fitting the trolley in FIG. 1,
  • FIG. 3 is a perspective view of a trolley of the type shown in FIG. 1 runing on a left mast
  • FIG. 3A is a perspective view of the left end of the work platform of FIG. 2 .
  • FIG. 4 is a perspective view of a trolley of the type shown in FIG. 1 running on a right mast
  • FIG. 4A is a perspective view of the right end of the work platform of FIG. 2 .
  • FIG. 5 is a perspective view of a transport platform of the construction hoist system of the invention.
  • FIG. 6 is a perspective view of an adapter fitting the trolley in FIG. 3,
  • FIG. 7 is a perspective view of an adapter of the same type as the adapter of FIG. 6, but provided with a support beam and fitting the trolley of FIGS. 1 and 4, respectively,
  • FIG. 8 illustrates a two-mast configuration according to the construction hoist system of the invention, comprising a transport platform of the type of FIG. 5 connected to the trolleys of FIGS. 3 and 4 with the aid of two adapters of the type shown in FIG. 6, and
  • FIGS. 9 and 10 illustrate tailor-made examples of the construction hoist system of the invention.
  • FIG. 1 shows a trolley 2 in accordance with the construction hoist system of the present invention comprising a generally rectangular vertically extending trolley frame 4 , guide wheels 6 journalled on the trolley frame 4 , and a platform connection frame 8 rigidly attached to the trolley frame 4 .
  • the platform connection frame 8 has a horizontal top beam 10 , a horizontal lower beam 12 , and two side beams 14 tapering from the top beam 10 to the lower beam 12 .
  • Two upper connection members 16 and 18 are mounted on the top beam 10 at opposite ends thereof, and a lower connection member 20 in the shape of a bracket is releasably attached to the lower beam 12 .
  • Each upper connection member 18 comprises a single bracket 18 A with a horizontal hinge hole and an adjacent double bracket 18 B with horizontal hinge holes.
  • a mitre-wheel gearing 22 with an electric motor 24 is mounted on the upper part of the trolley frame 4 and a safety device 26 of a well-known type is mounted on the lower part of the trolley frame 4 .
  • a level sensor 28 with a lever arm 30 is also mounted on the lower part of the trolley frame 4 .
  • FIG. 2 shows a rectangular work platform section 32 of a conventional design comprising a work floor 34 and a strengthening framework structure 36 under the work floor 34 .
  • there are two upper right connection members 38 and 40 rigidly attached to two adjacent corners of the work floor 34 two upper left connection members 42 and 44 rigidly attached to the other two corners of the rectangular work floor 34 , and lower right and left connection members 46 and 48 , respectively, rigidly attached to the lower part of the framework structure 36 .
  • Each upper right connection member 38 , 40 is designed as a double bracket with horisontal hinge holes, whereas each upper left connection member 42 , 44 is designed as a single bracket with a horizontal hinge hole.
  • the lower right connection member 46 is designed as a double bracket
  • the lower left connection member 48 is designed as a single bracket.
  • the construction hoist system of the invention further comprises at least one mast 50 having four vertical corner rails 52 and at least one vertical rack 54 , see FIG. 4 .
  • the trolley 2 runs by means of its guide wheels 6 on two adjacent corner rails 52 .
  • a pinion, not shown, of the gearing 22 is in mesh with the rack 54 to enable the motor 24 to drive the trolley 2 along the mast 50 .
  • other types of transmissions such as cable and pulley transmission, may be substituted for the described rack and pinion transmission.
  • the work platform section 32 is hinged to the trolley 2 by interconnecting the upper right double brackets 38 , 40 of the work platform section 32 and the upper single brackets 16 A, 18 A of the connection frame 8 by means of hinge pins, not shown, extending through the horizontal holes of the brackets.
  • the lower right double bracket 46 of the work platform section 32 is secured to the lower bracket 20 of the connection frame 8 , so that the work floor 34 extends horizontally from the trolley 2 .
  • the work floor 34 is situated at an upper level 55 relative the trolley 2 .
  • a number of work platforms sections 32 may be interconnected by means of the brackets 38 - 48 , to form a longer work platform 32 , up to about 19 meters would be possible.
  • the construction hoist system of the invention provides a double mast configuration as will be explained with reference to FIGS. 3 and 4.
  • the components shown in FIG. 3 which correspond to the components shown in FIGS. 1, 2 and 4 have the same reference numerals with the addition of a “prime”.
  • An additional mast 50 ′ with an additional trolley 2 ′ is provided to be connected to the left end of the work platform 32 .
  • the additional trolley 2 ′ is equivalent to the trolley 2 , except that the upper connection members 16 ′, 18 ′ of the trolley 2 ′ are turned upside down, so that the double brackets 16 B′, 18 B′ are situated above the single brackets 16 A′, 18 A′.
  • the upper left single brackets 42 , 44 of the work platform 32 fit the double brackets 16 B′, 18 B′ of the trolley 2 ′.
  • the right end of the work platform 32 is hinged to the trolley 2 by means of the brackets 16 A, 18 A, 38 , 40 .
  • the lower bracket 46 of the work platform 32 is connected to the lever arm 30 .
  • the left end of the work platform 32 is hinged to the trolley 2 ′.
  • the work platform 32 is tiltable about a horizontal axis 56 through the brackets 16 A, 18 A, 38 , 40 and about a horizontal axis 58 through the brackets 16 B′, 18 B′, 42 , 44 .
  • a levelling device controls the trolley motors 24 , 24 ′ in response to the level sensors 28 , 28 ′ sensing the deviation of the work platform 32 from a desired horizontal position of the work platform, so that the work platform 32 substantially maintains its horizontal position during hoisting and lowering.
  • FIG. 5 shows a rectangular transport platform 60 in accordance with the construction hoist system of the invention, comprising a load carrier floor 62 mounted on a rectangular frame 64 .
  • An adapter 66 for the transport platform 60 comprises two parallel fork elements 68 , which are attachable to the frame 64 at each short end of the transport platform 60 , a lateral beam 70 extending between the fork elements 68 , and two spaced apart posts 72 extending vertically upwardly from the lateral beam 70 .
  • Two double brackets 74 and 76 of the same type as the brackets 38 , 40 on the work platform 32 are attached to the posts 72 at their upper free ends.
  • a connection element 78 projects from the lateral beam 70 .
  • the transport platform 60 With the transport platform 60 provided with two adapters 66 , of which one has single brackets attached to the posts 72 , the transport platform 60 is connectable to the trolleys 2 and 2 ′ in substantially the same manner as described above for the connection of the work platforms to the trolleys 2 , 2 ′ see FIG. 8 .
  • the lever arms 30 and 30 ′ are attached to the respective connection elements 78 .
  • the transport platform is tiltable about the horizontal axes 56 and 58 .
  • the carrier load floor 62 When the transport platform 60 is in a horizontal position the carrier load floor 62 is situated at a level 80 relative the trolley 2 well below said level 55 of the work floor of the work platform 32 .
  • a support beam 82 is releasably attached to the adapter 66 as illustrated in FIG. 7 .
  • the support beam 82 is releasably attached to the lower beam 12 of the connection frame 8 on the trolley 2 .
  • the components of the construction hoist system of the present invention including masts 50 , trolleys 2 , work platforms 32 , transport platforms 60 and adapters 66 with or without support beams 82 enable tailor-made configurations for any buildings, as by way of example are schematically illustrated in FIGS. 9 and 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Sewage (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
US09/623,675 1998-03-27 1999-03-26 Construction hoist system Expired - Lifetime US6695097B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9801065A SE9801065D0 (sv) 1998-03-27 1998-03-27 Anordning vid kuggstångsdrivna hissar, byggplattformar eller liknande
SE9801065 1998-03-27
PCT/SE1999/000492 WO1999050167A1 (en) 1998-03-27 1999-03-26 Construction hoist system

Publications (1)

Publication Number Publication Date
US6695097B1 true US6695097B1 (en) 2004-02-24

Family

ID=20410747

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/623,675 Expired - Lifetime US6695097B1 (en) 1998-03-27 1999-03-26 Construction hoist system

Country Status (9)

Country Link
US (1) US6695097B1 (de)
EP (1) EP1064215B1 (de)
KR (1) KR100575568B1 (de)
AT (1) ATE247070T1 (de)
AU (1) AU758039B2 (de)
DE (2) DE69910361T2 (de)
HK (1) HK1035703A1 (de)
SE (1) SE9801065D0 (de)
WO (1) WO1999050167A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080236944A1 (en) * 2004-07-12 2008-10-02 Bruno Patron Platform Support Device For Lifting Loads Or Persons The Height Of A Structure
US20100032237A1 (en) * 2005-06-29 2010-02-11 George Anasis Self-erecting suspension platform system
US20100147626A1 (en) * 2006-05-16 2010-06-17 Andreas Jebing Passenger cage for elevators
US20110120801A1 (en) * 2008-05-26 2011-05-26 Noracon As Access system, a method of assembly, a support element, a guiding element and an extruded profile for the system
US20110198154A1 (en) * 2010-02-05 2011-08-18 Jerry Dean Worley Vertically Adjustable Automatic Step Stool
US20120018253A1 (en) * 2007-09-14 2012-01-26 Joseph Taberah Power lift system
US20130081352A1 (en) * 2011-09-27 2013-04-04 Chicago Bridge & Iron Company Freestanding elevator platform system
US20130232910A1 (en) * 2012-03-01 2013-09-12 Evapco, Inc. Method and Apparatus for Assembling Field Erected Cooling Tower Frame
US9347603B2 (en) 2013-06-20 2016-05-24 Taggart Global, Llc Counterweight hoisting apparatus
US10428536B2 (en) 2013-12-30 2019-10-01 International Chimney Corporation Scaffold system
WO2023070175A1 (en) * 2021-10-28 2023-05-04 Ponjavic Jozo System and method for elevator installation without scaffold assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6523647B2 (en) 2001-05-21 2003-02-25 Hydro Mobile Inc. Elevating platform assembly
US20030213647A1 (en) * 2002-05-20 2003-11-20 Andre St-Germain Removable tower sleeve
EP3434637A1 (de) * 2017-07-26 2019-01-30 HighStep Systems AG Plattformsystem

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323616A (en) * 1965-10-22 1967-06-06 Frank S Best Mason's scaffold
US3516512A (en) * 1968-03-06 1970-06-23 Eisenbau Karl Ladwig Bsb Mobile scaffold
US4262773A (en) * 1979-07-13 1981-04-21 Basham Billy G Portable scaffold
US4293054A (en) * 1980-05-19 1981-10-06 Piat Impalcature Automatiche S.P.A. Scaffolding for supporting lifting working bridges and platforms
US4294332A (en) * 1979-04-13 1981-10-13 Ready Delbert L Scaffold with gear drive
SE8006848L (sv) 1980-10-01 1982-04-02 Hedstroem Ture For transport av material upp och ned lengs en gejder avsedd anordning
DE3426985A1 (de) 1983-08-29 1985-03-21 Albert Böcker GmbH & Co KG, 4712 Werne An einem an schienen eines schraegaufzuges verfahrbaren schlitten verlagerter tragrahmen
US4619346A (en) * 1983-07-11 1986-10-28 Comabi S.A. Elevator-type work platform
US4809814A (en) * 1988-04-01 1989-03-07 St Germain Jean Scaffolding
SE462336B (sv) 1986-04-07 1990-06-11 Malmqvist Produkter Ab G Drivbar plattform foer byggnadsstaellning
US5159993A (en) * 1991-10-15 1992-11-03 Gestion Des Brevets Fraco Limitee Self-raising work platform assembly
US5259479A (en) * 1991-10-15 1993-11-09 Gestion Des Brevets Fraco Ltee Self-raising cantilever-type work platform assembly
US5555952A (en) * 1993-04-14 1996-09-17 Hek Manufacturing B.V. Platform, adjustable in height
US5579865A (en) * 1994-02-23 1996-12-03 Butler; J. Frank Scaffold
US6095285A (en) * 1999-08-23 2000-08-01 St-Germain; Andre Scaffolding
US6311800B1 (en) * 1999-06-28 2001-11-06 ST-GERMAIN ANDRé Raising system for scaffolding and the like

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323616A (en) * 1965-10-22 1967-06-06 Frank S Best Mason's scaffold
US3516512A (en) * 1968-03-06 1970-06-23 Eisenbau Karl Ladwig Bsb Mobile scaffold
US4294332A (en) * 1979-04-13 1981-10-13 Ready Delbert L Scaffold with gear drive
US4262773A (en) * 1979-07-13 1981-04-21 Basham Billy G Portable scaffold
US4293054A (en) * 1980-05-19 1981-10-06 Piat Impalcature Automatiche S.P.A. Scaffolding for supporting lifting working bridges and platforms
SE8006848L (sv) 1980-10-01 1982-04-02 Hedstroem Ture For transport av material upp och ned lengs en gejder avsedd anordning
US4619346A (en) * 1983-07-11 1986-10-28 Comabi S.A. Elevator-type work platform
DE3426985A1 (de) 1983-08-29 1985-03-21 Albert Böcker GmbH & Co KG, 4712 Werne An einem an schienen eines schraegaufzuges verfahrbaren schlitten verlagerter tragrahmen
SE462336B (sv) 1986-04-07 1990-06-11 Malmqvist Produkter Ab G Drivbar plattform foer byggnadsstaellning
US4809814A (en) * 1988-04-01 1989-03-07 St Germain Jean Scaffolding
US5159993A (en) * 1991-10-15 1992-11-03 Gestion Des Brevets Fraco Limitee Self-raising work platform assembly
US5259479A (en) * 1991-10-15 1993-11-09 Gestion Des Brevets Fraco Ltee Self-raising cantilever-type work platform assembly
US5555952A (en) * 1993-04-14 1996-09-17 Hek Manufacturing B.V. Platform, adjustable in height
US5579865A (en) * 1994-02-23 1996-12-03 Butler; J. Frank Scaffold
US6311800B1 (en) * 1999-06-28 2001-11-06 ST-GERMAIN ANDRé Raising system for scaffolding and the like
US6095285A (en) * 1999-08-23 2000-08-01 St-Germain; Andre Scaffolding

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9133632B2 (en) * 2004-07-12 2015-09-15 Fixator Platform support device for lifting loads or persons the height of a structure
US20080236944A1 (en) * 2004-07-12 2008-10-02 Bruno Patron Platform Support Device For Lifting Loads Or Persons The Height Of A Structure
US8636111B2 (en) 2005-06-29 2014-01-28 Sky Climber, Llc Suspension platform system
US20100032237A1 (en) * 2005-06-29 2010-02-11 George Anasis Self-erecting suspension platform system
US9217254B2 (en) 2005-06-29 2015-12-22 Sky Climber, Llc Suspension platform system
US8302735B2 (en) * 2005-06-29 2012-11-06 Sky Climber, Llc Self-erecting suspension platform system
US20100147626A1 (en) * 2006-05-16 2010-06-17 Andreas Jebing Passenger cage for elevators
US20120018253A1 (en) * 2007-09-14 2012-01-26 Joseph Taberah Power lift system
US20110120801A1 (en) * 2008-05-26 2011-05-26 Noracon As Access system, a method of assembly, a support element, a guiding element and an extruded profile for the system
US8905190B2 (en) * 2008-05-26 2014-12-09 Noracon As Access system, a method of assembly, a support element, a guiding element and an extruded profile for the system
US20110198154A1 (en) * 2010-02-05 2011-08-18 Jerry Dean Worley Vertically Adjustable Automatic Step Stool
US20130081352A1 (en) * 2011-09-27 2013-04-04 Chicago Bridge & Iron Company Freestanding elevator platform system
US9528282B2 (en) * 2011-09-27 2016-12-27 Chicago Bridge & Iron Company Freestanding elevator platform system
US20160010345A1 (en) * 2011-09-27 2016-01-14 Chicago Bridge & Iron Company Freestanding elevator platform system
US9150397B2 (en) * 2011-09-27 2015-10-06 Chicago Bridge & Iron Company Freestanding elevator platform system
US8984842B2 (en) * 2012-03-01 2015-03-24 Evapco, Inc. Method and apparatus for assembling field erected cooling tower frame
US20150275538A1 (en) * 2012-03-01 2015-10-01 Evapco, Inc. Method and Apparatus for Assembling Field Erected Cooling Tower Frame
US20130232910A1 (en) * 2012-03-01 2013-09-12 Evapco, Inc. Method and Apparatus for Assembling Field Erected Cooling Tower Frame
US9347603B2 (en) 2013-06-20 2016-05-24 Taggart Global, Llc Counterweight hoisting apparatus
US10428536B2 (en) 2013-12-30 2019-10-01 International Chimney Corporation Scaffold system
WO2023070175A1 (en) * 2021-10-28 2023-05-04 Ponjavic Jozo System and method for elevator installation without scaffold assembly

Also Published As

Publication number Publication date
HK1035703A1 (en) 2001-12-07
ATE247070T1 (de) 2003-08-15
DE1064215T1 (de) 2001-05-23
KR100575568B1 (ko) 2006-05-02
DE69910361D1 (de) 2003-09-18
DE69910361T2 (de) 2004-06-24
EP1064215B1 (de) 2003-08-13
EP1064215A1 (de) 2001-01-03
SE9801065D0 (sv) 1998-03-27
AU758039B2 (en) 2003-03-13
KR20010034693A (ko) 2001-04-25
AU3351599A (en) 1999-10-18
WO1999050167A1 (en) 1999-10-07

Similar Documents

Publication Publication Date Title
US6695097B1 (en) Construction hoist system
US6405831B1 (en) Mobile lift unit
US4350254A (en) Container handling and lifting equipment, such as a crane or a gantry
US5622237A (en) Portable hoist system
FI88792B (fi) Sjaelvroerlig plattform av laogprofil i anslutning till fordon avsedd foer arbete i luften
US4596336A (en) Mobile crane
CA2260353A1 (en) Lateral jib for vertical mast mobile elevating work platform
US4692085A (en) Material handling system
US3982732A (en) Apparatus for transporting and erecting modular housing system
US5551527A (en) Lift device for a three point hitch
US5224612A (en) Portable crane
US20010027955A1 (en) Crane vehicle
US4002242A (en) Vehicle cranes
US4220246A (en) Sheave adjustable balance crane
GB2206097A (en) Loading and unloading vehicles
GB2218965A (en) Powered access platform units.
JPH02182695A (ja) 伸縮ブーム先端へのジブ連結装置
JP3436360B2 (ja) 岸壁クレーン
JPH04358698A (ja) 台車式クレーン
CN216836866U (zh) 简易葫芦吊装系统
JP2940575B2 (ja) 反転用吊り上げ装置
RU2084395C1 (ru) Подъемное устройство
JP2543121B2 (ja) リフト装置
JP2537093B2 (ja) 機械式駐車装置の支持構造
SU1446092A1 (ru) Грузоподъемный кран

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALIMAK AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WIKLUND, SVEN-ERIK;REEL/FRAME:011094/0835

Effective date: 20000829

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12